A bus can travel 20% faster than a scooter. Both start from point Pat the same time, and reach point Q, 60 km away from point P, at the same time. On the way, however, the bus lost about 10 minutes while stopping at bus stations, while the scooter did not stop anywhere. What is the speed of the bus? |
68 km/h 80 km/h 60 km/h 72 km/h |
72 km/h |
Let speed of Scooter = 5x Then Speed of bus = 6x Bus Stoppage time = 10 min So , Bus runs only for 50 min According to question , \(\frac{60}{5x}\) - \(\frac{60}{6x}\) = \(\frac{10}{60}\) \(\frac{60x}{30x2}\) = \(\frac{10}{60}\) \(\frac{60}{30x}\) = \(\frac{10}{60}\) x = 12 so 6x = 72 So , Speed of bus = 72 km/h |